We present the design of a new web application framework for collaborative learning. The framework guides users (i.e. teachers) in implementing online activities based on well-know...
Abstract. Xface, the new version of our open source, platform independent toolkit for developing 3D embodied conversational agents is presented. The toolkit currently incorporates ...
Named Graphs is a simple, compatible extension to the RDF syntax that enables statements to be made about RDF graphs. This approach is in contrast to earlier attempts such as RDF r...
The integration of aspects into the methodology of stepwise software development and evolution is still an open issue. This paper focuses on the global quantification mechanism of...
After more than a decade of research, visual languages have still not become everyday programming tools. On a short term, an integration of visual languages with well-established ...